DIAMOND SYSTEMS EMM-8PLUS-XT
Features
- 16C654 UARTS with 64-byte FIFOs
- 8 programmable digital I/O lines
- 8 serial ports with up to 1.8432Mbps data rates
- Configurable for RS-232/RS-422/RS-485 protocols or simple TTL level operation
- PC/104-Plus form factor
Datasheet
Extracted Text
EMERALD-MM-8PLUS HIGH PERFORMANCE PC/104-PLUS MULTIPROTOCOL 8 PORT SERIAL IO 8 serial ports with up to 1.8432Mbps data rates 16C654 UARTS with 64-byte FIFOs Configurable for RS-232/RS-422/RS-485 protocols or simple TTL level operation 8 programmable digital I/O lines PC/104-Plus form factor SPECIFICATIONS DESCRIPTION Emerald-MM-8Plus is a high performance eight port No. of ports 8 multi-protocol serial communications PC/104-Plus module. Protocols RS - 232, RS - 422, RS - 485 (local / no echo) Supporting baud rates up to 921.6K bps in RS-232 mode or Protocol Config. Jumpers 1.8432Mbps in RS422 or RS485 mode, each port can be Software Config. Plug and Play individually selected for RS-232, RS-422, RS-485 or TTL level Max baud rate 1.8432Mbps operation. Both local-echo and non-local-echo modes are Comm params 5,6,7 or 8 data bits; even, odd or no parity Short protection Continuous, all outputs supported for RS-485. Protocol selection is achieved via a Digital I/O 8, individually programmable jumper block for each of the eight ports. Line termination for Dimensions 3.55” x 3.775” RS-422/485 modes is also jumper-selectable. Power Supply +5VDC ±10%, 160mA Operating Temp - 40°C to +85°C Extended Emerald-MM-8Plus is based on the Exar 17D158 octal UART IC. Weight 3.1oz (87.9g) which contains 8 identical sets of 16C550 registers, one for RoHS Compliant each port, and is compatible with the standard PC serial port. RS - 232 Specifications Input impedance 3KΩ minimum Each port contains 64-byte transmit and receive FIFOs to Input voltage swing ±30V maximum support the high-speed data rates. Output voltage swing ±5V min, ±7V typical RS - 422, RS - 485 Specifications Emerald-MM-8Plus also offers 8 convenient independently Diff. threshold - 0.2V min, +0.2V max input programmable digital I/O lines. Emerald-MM-8Plus offers a Input impedance 12KΩ min 16-bit programmable counter / timer with a configurable clock Input current +1.0µA max (VIN=12V) - 0.8µA max (VIN= - 7V) source. Diff. ou tput voltage 2.0V min (R =50Ω) L Diff. output voltage 0.2V max The board requires only a +5V input and operates from -40°C to symmetry +85°C. Termination Jumper - selectable 120Ω D igital I/O Specifications Input voltage Logic 0: - 0.3V min, 0.8V max Logic 1: 2.0V min, 5.3V max ORDERING INFORMATION Output voltage Logic 0: 0.0V min, 0.4V max Logic 1: 3.7V min, 5.0V max Output current 0: 6mA max; 1: - 4mA max Part No. Description EMM - 8PLUS - XT 8 RS - 232/422/485 serial ports www.diamondsystems.com
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